Re: Postfix queues mails rejected with 5xx errors
- Sz?ts ?kos:
> Dear list members,And then they hang up, in violation of SMTP, defined in RFC 5321.
> I have the following problem:
> A 3rd party e-mail provider refuses the HELO/EHLO command if it doesn't
> contain a valid FQDN address (which is acceptable from their point of view).
> They refuse it with a 501 (permanent) error
If you believe that Postfix is in error, you MUST cite the
relevant section of RFC 5321, not some random website.